Paolo Zampolli, the flamboyant founder of a Manhattan modeling agency who now works as a real estate broker, hoarded $1.5 million in commissions from his employer, Douglas Elliman, a Manhattan civil suit says.

Elliman is suing Zampolli — an Italian aristocrat and UN ambassador — claiming that he reneged on their 2011 agreement to hand over 30 percent of his commissions.

The suit charges the ID Models founder with using his personal email address to try to hide a total $4 million in commissions — and their $1.5 million stake.

Elliman now wants all $4 million as punishment.

Zampolli told The Post the suit is baseless.

“I think that this has been triggered by the fact that I left,” Zampolli said, explaining that Elliman execs allowed him to keep his own brokerage license while contracting for the company but they have since parted ways.

His lawyer, Raymond Dowd, said Zampolli never had an Elliman listing during the three years he worked for the Realtors.